Improvements for Feedback Milestone 3 #252

[MistereoSC]

Changes

• Register Page now directs to login after registration
• CMS Nav Menu now highlights selected tab
• Added Loading Spinners to Register, Login and CMS pages
• Updated Loading and Register pages to use Bootstrap
• Updated Board List and User List within the CMS page to use Bootstrap
• Added a (temporary) logout page at /logout
• Minor localization improvements

[MistereoSC]

• Without a lot of Data to load, loading spinners are barely visible, but they are present

• Logout page just is a blank page that redirects you back to login. But it also deletes local storage, and sends a logout request to the serve

• Table headers have been translated. Unfortunately, since they are stored within the 'fields' variable, they only update on page refresh when changing language